CVE-2021-4234
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I. Basic Information for CVE-2021-4234
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenVPN Access Server 2.10 and prior versions are susceptible to resending multiple packets in a response to a reset packet sent from the client which the client again does not respond to, resulting in a limited amplification attack.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对网络消息容量的控制不充分(网络放大攻击)
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenVPN 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenVPN是美国OpenVPN公司的一个用于创建虚拟专用网络（VPN）加密通道的软件包，它使用OpenSSL库来加密数据与控制信息，并允许创建的VPN使用公开密钥、电子证书或者用户名/密码来进行身份验证。 OpenVPN Access Server 2.10 版本及之前版本存在安全漏洞，该漏洞源于服务器会重新发送多个数据包以响应客户端发送的重置数据包，而客户端再次没有响应，从而导致有限放大攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | OpenVPN Access Server | 2.10 and prior version | - |
II. Public POCs for CVE-2021-4234
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · n/a · 2022-07-06 · 30 CVEs total
| CVE-2022-24141 | iTop VPN 安全漏洞 | |
| CVE-2022-2318 | Linux kernel 资源管理错误漏洞 | |
| CVE-2022-32290 | Northern.tech Mender 安全漏洞 | |
| CVE-2022-30591 | quic-go 资源管理错误漏洞 | |
| CVE-2022-32386 | Tenda AC23 缓冲区错误漏洞 | |
| CVE-2022-32385 | Tenda AC23 缓冲区错误漏洞 | |
| CVE-2022-32383 | Tenda AC23 缓冲区错误漏洞 | |
| CVE-2021-31676 | PESCMS 跨站脚本漏洞 | |
| CVE-2021-31677 | PESCMS 跨站请求伪造漏洞 | |
| CVE-2021-31679 | PESCMS 跨站请求伪造漏洞 | |
| CVE-2021-31678 | PESCMS 跨站请求伪造漏洞 | |
| CVE-2022-28935 | 多款TOTOLINK产品命令注入漏洞 | |
| CVE-2022-24138 | IOBit Advanced System Care (Asc.exe) 15、Action Download Center 安全漏洞 | |
| CVE-2022-24139 | IOBit Advanced System Care Free 安全漏洞 | |
| CVE-2022-24140 | 多款IOBit产品安全漏洞 | |
| CVE-2014-8164 | Red Hat CloudForms Management Engine 信任管理问题漏洞 | |
| CVE-2022-30929 | Mini-Tmall 安全漏洞 | |
| CVE-2021-3695 | grub2 缓冲区错误漏洞 | |
| CVE-2021-3696 | grub2 缓冲区错误漏洞 | |
| CVE-2021-3697 | grub2 缓冲区错误漏洞 |
Showing top 20 of 30 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-4234
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